How to Recover Raid 0 Data
RAID 0 uses a striping method to store data blocks on member disks in the array configuration. An array usually consists of two or more disks. RAID 0 may be implemented using software or a controller. RAID 0 is not a redundant array, which makes it difficult to recover data if one of the member disks incurs damage. RAID 0 does provide a performance increase with the inclusion of multiple disks. RAID 0 does not require disk space overhead or a complicated controller. Knowing how to recover RAID 0 data requires extensive knowledge of array configuration or the ability to work with special software.
Recovering RAID 0 data is difficult when a member disk is damaged.
How to Recover RAID 0 Data Manually
Recovering RAID 0 data manually requires knowledge of the data order on individual member disks and block size. Block size refers to the expression of data in sectors or kilobytes. One kilobyte typically equals two sectors. Be careful not to confuse the units.
Data recovery specialists can find out the block size by looking up its value on spare drives with a new array, the Internet, or on member disks. In order to determine the data order on member disks, data recovery specialists must find a copy of a large enough file that was stored on the array and use a tool to view the disk content. If a file does not manifest itself on the array, then they can perform a RAW recovery on one of the member disks to see the stored images on it.
A skilled data recovery specialist can identify the file with fragments found on the member disks. In order to find the file fragments located on the member disks, data recovery specialists need to know how to launch a disk viewer tool. If multiple fragments appear during the search, then they need to look for a longer fragment of the file. Searching the array for fragments may take an hour, and it may require a full week to recover the array entirely.
Data recovery experts should look for file continuation on the sector of another drive after locating a fragment of the file on the drive. If a file fragment does not exist on the same drive, then they must search other disks. If a file continuation does exist on the same drive, then they can determine block size by scanning the continuation until it ends. This helps determine the beginning and end of the file on both disks in the array. In a case involving three or more disks, data recovery specialists must search the member disks for transitions between the file fragments.
The data recovery specialist must then go to the last analyzed sector on the other disk and search there for file continuation. The values of block size may come in one of six different sectors: 32, 64, 128, 256, 512, and 1024. After discovering the file continuation on the other disk, it becomes easy to determine the block size and disk order. If nothing is found, then the data recovery specialist should try another block size.
How to Recover Raid 0 Data Using Special Software
Data recovery specialists may opt to use special software to save time. RAID 0 data recovery software uses different algorithms to recover array configuration. Recovering RAID 0 with special software requires the specialist to know the block size and disk order. Therefore, RAID 0 is usually recovered in automatic mode. The basic steps for recovering RAID 0 using any software involve connecting the disks to the PC without a RAID controller, running the software to determine array configuration, and feeding the configuration back to the RAID controller or using it with another data recovery tool.
Secure Data Recovery Services specializes in RAID 0 data recovery and repair. Our certified and professional data recovery specialists provide consistent, reliable results. We invest in our nationwide facilities to maintain our impeccable reputation for providing a 96 percent success rate on all RAID configurations. We address common data loss scenarios associated with RAID 0, including hard drive failure resulting in RAID loss, electronics issues and PCB damage, controller failure, hardware conflicts, hardware failures, hard drive firmware damage, file corruption, virus damage, and formatting errors.